Superconductivity in NdBa2(Cu3-xMgx)O7+z High Temperature superconductor system
Today, many scientists work intensively on the development of new high-temperature superconductors or applications. In this context, it is not surprising that a new superconductor is discovered every year at a high or low-temperature scale. It is known that NdBaCuO-based superconductors show a transition to superconductivity around 96 K, which was found a long year ago. At the same time, a large number of substitutions or doping have been made on this material, mainly in the Cu site. However, no study was found with Mg doping or substitutions instead of Cu site in the NdBaCuO system. In this study, for the first time in the literature, NdBa2(CuMg)3O7+z, where x=0.1%, 0.2%, and 0.3%, materials were prepared with a solid-state reaction method and then characterized. In the first analysis, it was found that the material passed into the superconducting phase at 98 K and had a critical current density of the order of 106 A/cm2 at 4.2 K. The results of other characterizations along with crystal parameters and magnetic properties are presented in this study.